The listing explains: “According to one example of the invention, the flexible battery 10 may be used in a multi-function portable electronic device.

“However, in alternate embodiments, features of the various embodiments of the invention could be used in any suitable type of portable electronic device such as a mobile phone, a gaming device, a music player, a notebook computer, or a personal digital assistant, for example.”

Last year we were told Nokia was focusing big on wearable tech, though the same article proposed that the Finns’ Android-based handsets had been canned, which of course wasn’t the, er, case.

However, this is definitely the way things are going, with everyone and his dog rushing to get a smartwatch out before the Apple iWatch, and bendy phones touching down like the LG G Flex.